import React from 'react'
import A1 from './components/A1.js'
import A2 from './components/A2.js'
import A3 from './components/A3.js'

/*
    props: 单向数据流，子组件中，不可以更改数据
*/ 

export default function A004_props() {
    return (
        <div>
            <A1></A1>
            <hr />
            <A2></A2>
            <hr />
            <A3></A3>
        </div>
    )
}
